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How to Create a Webcam Audio Visualizer with Three.js

6.9.2019
A tutorial on how to create a Three.js powered audio visualizer that takes input from the user's webcam. How to Create a Webcam Audio Visualizer with Three.js was written by Ryota Takemoto and published on Codrops

5 Key Concepts from Day One at Bitcoin Cash City

5.9.2019
With day one of North Queensland’s Bitcoin Cash City all wrapped up, conference attendees were left with an overflow of big ideas to distill, process, and potentially integrate. These include underwriting merchant adoption, building tech parks and mining operations, BIP70 applications...

Multiline truncated text with “show more” button

4.9.2019
Now that we've got cross-browser support for the line-clamp property, I expect we'll see a lot more of that around the web. And as we start to see it more in use, it’s worth the reminder that: Truncation is not a content strategy. We should at least offer a way to read that that truncated content...

Need to scroll to the top of the page?

2.9.2019
Perhaps the easiest way to offer that to the user is a link that targets an ID on the <html> element. So like... <html id="top"> <body> <!-- the entire document --> <a href="#top">Jump to top of page</a> ...

Reusable Popovers to Add a Little Pop

26.8.2019
A popover is a transient view that shows up on top of a content on the screen when a user clicks on a control button or within a defined area. For example, clicking on an info icon on a specific list item to get the item details. Typically, a popover includes an arrow pointing to the location from...

Navbar Nudging on @keyframers

22.8.2019
I got to be the featured guest over on The Keyframers the other day. We looked at a Dribbble shot by Björgvin Pétur Sigurjónsson and then slowly built it, taking some purposeful detours along the way to discuss various tech. We start by considering doing it entirely in CSS, then go for some light...

Lazy load embedded YouTube videos

20.8.2019
This is a very clever idea via Arthur Corenzan. Rather than use the default YouTube embed, which adds a crapload of resources to a page whether the user plays the video or not, use the little tiny placeholder webpage that is just an image you can click that is linked to the YouTube embed. It still...

Using Immer for React State Management

7.8.2019
We make use of state to keep track of application data. States change as users interact with an application. When this happens, we need to update the state that is displayed to the user, and we do this using React’s setState. Since states are not meant to be updated directly (because React’s state...

Fetching Data in React using React Async

1.8.2019
You’re probably used to fetching data in React using axios or fetch. The usual method of handling data fetching is to: Make the API call. Update state using the response if all goes as planned. Or, in cases where errors are encountered, an error message is displayed to the user. There will always...

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